Means for tempering metal members.



W. 611. ALLABOR.

MEANS FOR TEMPERING METAL MEMBERS.

APPLICATION man 1u1Y17. 1913.

W. L J. ALLABOR.

MEANS FOR TEMPERING METAL MEMBERS.

APPLICATION FILED IULYIT 1913.

COLUMBIA PLANcuRAPH C0..\vAsH|NuTDN. D. c.

UN'iTED sTATEs PATENT oEEioE.

WILHELMz Anna-Eon aiaiJJEiiial ALLAEOE, OEEHEINECK, NEaEsT. GALLEN, i SWITZERLAND.

MEANS FOR 'lEMPERING` METAL MEMBERS.

` To all fui/tom t may concern.'

Be it known that we, WiLi-IELM'ALLABOR andJEAN ALLABOR, citizens ofthe Republic of Switzerland, residing at Rhei-neck, near St'.` Gallen, Canton of St. Gallen, Switzer-v f or parts of each member without tempering n *the whole member. f 15k As is well known, the ordinaryprocess of tempering an article consists in placingv the article in a bath of water or oil. The entire member, whether large or small, is thus tempered, whereas very frequently the tempering is required only at certain points ory upon certainy surfaces With the old style processes, an article isl frequently tempered r0i' hardened in such way that it isdiii'cult to finishthe' parts without breaking or cracking saine, vrand this invention is designed to overcome that difficulty. Those articlesreally needV tempering only upon certain surfaces, andI yit is often a positive disadvantage to have the article tempered or hardened elseengages the aXle.

where; hence, it isthe object of this invention to temper only those parts or surfaces of a metallic body w-heie the tempering is really required. In the drawings, for example, the invention is shown as applied to the purpose of tempering metal wheels, and adapted to temper either the inner surface ofy the hubor the periphery of the wheel, or both, but without affecting the spokesl or partsr` not requiring hardening. The dravings alsoshow they application of the invention yto certain other articles, and depict forms of apparatus designed to harden various members at 'certain' specific points or upon certain bearing surfaces. The wheel, f'oreXample, is tempered only at two places, one being the periphery which for-ms the tire of a car-wheel or teeth of a gear wheel, the other being ythe surface where rthe hub The' remainder of the wheel is not hardened, andis, therefore,

, more easy tok work with during the other product, therefore, is a wheel which is tempered or'hardened at the bearing surfaces,

Specification of Letters Patent.

Patented Dee/7,1915.

Application led July 17, 1913,. Serial No; 779,509. f i K without being rendered brittle or non-malle- L able elsewhere. It' should be understood, of

course, that the specific 'applications of the invention shown in the drawings are merely by way 'of illustration and/example, and

that many other uses and practical applications ofy the invention will be evident to those slilled'in the art.

In the drawings, Figure 1 is a View, partly in elevation and partly in section, offanc app aratus adapted to temper both thefhub aiidfv rim of av wheel.; Fig. 2 isV a detailed viewof a form used--for tempering the 'rim alone;

Fig. 3 shows a foi-in adapted totemper rims e of miter gears; Fig. 4 showsaforinfadapted tor temper hollow .members, such as sleeves;

Fig shows a form adapted4 to temper ycrank-arms or the like.;y Fig. 6 "isf a-view' at right'anglesito Fig.' 5. f f

f rllheconical shelll (Fig. 1)'rests1upon the pipe 3 provided with thedrain-f cock 2. `Collars elpierce shell 1 and supportthe hollow coiie-v or` guide 5 therefromfr As shown in Fig. 1the collarss` are secured tothe cone 5 at the inner end of each collar.'j As the collars l project downwardly and at. an

' is supportediby the shell. Atthetopof cone 5 is a ledge 6 upon which thepla'tel 7 rests. Pins 8` project upwardly from plate 7 through perforations in disk 9, andi maintain and' support the said disk in proper position abovevthe plate. The hub of the wheel 10 rests upon y'said pins 8, with its rim beyond the outer edges of guide The plate 7 is provided with small perforations 7L shown in Fig. 1, which form drain holes through which'r the watery collected upon plate is drained off. i

f The Valve 1'1 controlsthe pipe-3,which.is connected by a T-coupling 12 to water-.pipe 13 provided with a valve 14. Pipe' 13, communicates withl a flexible member 15 having a nozzle 16. Lever 1*.7 is pivoted to nozzle 16, and is connected tospring 119I and pawl and ratchet 20, so that nozzleld can be carried toward or away from the wheel.` 10.

To use the apparatus of Figli, the valves 11 and 14 are opened and;` water flowsy where it touches the rim or edge of wheel 10 and tempers the same. The water from pipe 15 drops upon the hub of gear 10 and passes directly inside the lower end of the same, and thence drops down upon the plate 9 which prevents the water from entering the hollow cone 5. See Fig. 1 in which the pipe 15 is shown with its lower end vertically over the gear 10. lThe water vused to chill the hub simply mingles with the water which has passed through space 21, and escapes from the apparatus by flowing over the upper edge of shell 1. In Fig. 2, the wheel 10 is partly covered by a cap-plate 22 held in place by nut 23 which fits upon a post screwed into the hollow cone 5 near its apex. In this apparatus only the rim of the wheel 10 is touched by the water.

Fig. 3 depicts an apparatus for handling miter gears. upon a disk 25 (corresponding to part 9, Fig. 1). rIfhe cone 26 is supported by stepped holders 27 resting upon shell 28 connected to pipe 29. The cone 26, like the cone 5 in Fig. 1, directs the water toward the periphery of the wheel and keeps the water from touching the hub.

In Fig. 4, the sleeve 100 is to be tempered upon its outer surface only. The pipe3 carries a casing 30 supported by the strips 31 which also carry an inner casing 32 perforated at 33. Rod 34 projects upwardly from the bed 35 retained upon supports 31. The sleeve 100 rests upon the floor 3G. This water rises upwardly through pipe 3, and thence flows as indicated by the arrows. Since the sleeve 100 is held in place by the nut 38, the water engages only the outer surface of the sleeve.

In Fig. 5, the apparatus is adapted to .temper only the crank-arms 45 upon the shaft 43. The casing 40 is made in two sections hinged together at 39a, and locked or clamped at 40. Glands 42 are-provided upon the walls of the casing and shaft 43 rests upon the rings 44 retained in said glands. The water, flowing upwardly through casing-members 39 and 41, escapes by the mouths 46, but in passing through the device, tempers only that part of the shaft within the casing and between the two rings 44.

In all forms of the invention the tap 2 I allows the water to escape when it is no longer desired within the pipe 3, 29, or 54.

It will be observed that one of the salient features of the invention is the fact that the iron or steel member which is to be hardened or tempered is supported in suitable apparatus, which apparatus is soV constructed as to permit water to touch only those edges or surfaces of the iron or steel member which are to be tempered and which will keep the water from touching the rest of the iron or steel member. This invention, therevThe wheel 24 is supported' fore, will temper only such parts or surfaces as really require tempering, and will not affect the remainder of the body with which the water comes into contact. Referring again to the specific wheel 10 shown in Fig. 1, it will be observed that the water touches said wheel upon the inner bearing surface of the hub which may or may not be toothed.

The stream of water which flows through the nozzle 16 is directed within the hub, and the stream of water which arrives through the passages 21 tempers the periphery of the wheel. Similarly, in Fig. 3, the stream of water which Vpasses between the upper and lower cones 26 and 28 will temper the teeth of the miter gear 24 but will be kept out of engagement with the rest of the gear by the support 26; and in an obvious manner each of the otherforms of apparatus permit the watery to touch the surface or surfaces which should be hard and prevent the water from touching the remaining parts or surfaces of the metal member. It will be further observed that many changes in the details of construction of the apparatus and performance of the process may be made without departing from the scope of the invention.

We claim as our invention:

1. The combination of a pipe, an outer shell carried by said pipe and having a connection therewith, an inner shell mounted within and spaced from said outer shell, a collar secured to the inner shell and extending through the outer shell supporting said inner shell and forming a connection between the interior thereof and the exterior of said outer shell, and a support coperating with said inner shell.

2. In an apparatus for tempering metal, an upper supply pipe for the tempering fluid having a depending nozzle, a lower supply pipe for tempering fluid having its terminal arranged beneath the nozzle of the upper supply pipe, a conical shell mounted on the said terminal of the lower supply pipe and having two concentric conical walls separated sufficiently to provide an annular passageway for the tempering fluid therethrough and a circular supporting plate for the article to be tempered arranged upon and supported from the top edge of the inner conical wall of said shell and centrally located beneath the nozzle of the upper supply pipe.

4. In an apparatus for tempering metal, an upper supply pipe having a depending nozzle, a lower supply pipe having its terminal arranged beneath the nozzle of the upper supply pipe, a conical hollowT double Walled shell mounted upon the terminal of the lower supply pipe and beneath the nozzle of the upper supply pipe, aplate suitably mounted upon the shell and having a series of vertical pins, a top draining disk mounted on the plate and having perforations through Which the pins pass, said plate and pins being adapted to support an article in position to have certain desired surfaces thereof tempered.

In testimony whereof We hereunto affix our signatures in the presence of two Witnesses.

WILHELM ALLABOR. JEAN ALLABOR.

VVitneSses: y

F. JUDERMAN, R. THIRIG ADJUNKLE.

Copies of this patent may be obtained for ve cents each, lby addressing the Commissioner of Patents, Washington, D. C. 

